101/Woodside Interchange

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101-84 Project Exhibit 11x17 reduced (002)


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Latest News

101/Woodside Interchange progress is strong and steady! Final design of this bold project is revealing dramatic benefits for all users. Right of way descriptions and costs are being refined to enable sound property acquisition strategies. The City Council Transportation/Mobility Sub-Committee was briefed on project status in May 2019. This update was prepared to refresh all and gain important insights to maintain momentum on this significant regional project. The end result of design will be a strong project definition with clear benefits and costs – essential ingredients to secure capital funding in a highly competitive funding arena.

Design Details Benefit All

Traffic operations and safety will be enhanced by new on and off ramps, including the Veterans flyover, modernized and interconnected traffic signal systems and additional lanes on Woodside Road from Route 101 to Bay Road. Drivers will feel dramatic improvements accessing and crossing Route 101.

Pedestrians and bicyclists will benefit from safe, direct shared use paths that cross Route 101 (where none presently exists) along Woodside Road and next to the Union Pacific Railroad Redwood Harbor Industrial Lead serving the Bayfront and Seaport area. These paths will provide dual continuous connections between Broadway and Blomquist/East Bayshore -- and the Bay Trail. Similarly, a bikeway will be built along the Veterans flyover to allow bicyclists to connect between Chestnut Street and Charter Way using an aerial cycle track above Woodside Road. Also, sidewalks and bikeways (bike lanes, cycle tracks, and shared routes) will be built with all roadway improvements to connect existing facilities and further enhance and encourage walking and bicycling in the rapidly changing project area.

Interchange structures will be strategically enhanced with aesthetic designs to complement the local environment and provide a visually pleasant experience for all users of this key City gateway. Similarly, landscape features will help soften the relatively hard edges of the interchange and incorporate recycled water.

The Union Pacific Railroad will benefit from new overhead ramps and improved at-grade crossings and safety signals at Veterans and Blomquist.

Right of Way Support

Additional design details have substantially enhanced the descriptions and dimensions of permanent acquisitions and temporary construction easements required to build the project. The City’s right of way support consultant is updating acquisition costs for all project parcels, which will be compared to programmed right of way acquisition funds. Current costs and refined property requirements will provide the basis for developing property acquisition and funding strategies.

Community Engagement

Now that the relatively silent design process has progressed, staff is crafting a plan to brief the community at large. The City Council Transportation/Mobility Sub-Committee was briefed in May 2019 about project status, issues, costs and funding opportunities. Staff is considering the appropriate timing for discussions with City Council and a community open house.

Strong Case for Funding

The project offers substantial local, regional, State and Federal transportation benefits by enhancing safety, access and circulation by all users and in turn adding value to activity centers, existing and planned residential, commercial, industrial and institutional land uses on both sides of Route 101. From a benefit-cost perspective, the project results in substantial reductions in average vehicular delay that translate into a very strong ratio of benefits to costs. This is essential to a high score in funding applications.

The project improves trade by removing a traffic bottleneck that routinely delays Port and Seaport Boulevard area goods movement to and from Route 101. Also, the project improves the value and goods movement utility of the Union Pacific Railroad Redwood Harbor Industrial Lead with new overhead ramps and at-grade crossing improvements. The project complements the Route 101 Managed Lanes Project by enhancing freeway connections and reducing congestion in line with the Route 101 Corridor Mobility Plan.

The City has contributed significant local funds to planning, engineering, environmental and design efforts. The City is committed to substantial investments of existing property required for the project and, in partnership with local developers, investments of traffic impact fees, community benefit funds and existing properties required for the project. The intended result is a valuable pool of local matching funds to leverage in pursuit of County, Regional, State and Federal grant funding.


The schedule to complete the project is contingent upon securing construction funding. The intent is to complete final design in 2020, which will provide solid evidence of “project readiness” in the context of securing and using grant funding.

Schedules for right of way acquisition and construction will be defined by the City and its partners once a complete funding picture is in hand.

Please contact Paul Krupka, the City's Project Manager, pkrupka@redwoodcity.org or 650.504.2299 if you have any questions or comments about the project.

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Project Overview

The City of Redwood City, in cooperation with the California Department of Transportation and the San Mateo County Transportation Authority, is proposing to reconstruct the Route 101/84 (Woodside Road) interchange. The purpose of the project is to relieve existing and future traffic congestion, and to improve traffic safety and vehicular access to and from Route 101 and SR 84 (Woodside Road). The goals include improving highway operations, reducing associated congestion on Redwood City streets, removing barriers to non-motorized travel and minimizing impacts on nearby businesses. The project proposes to modify the on- and off-ramp configuration at the interchange and adjacent local intersections to improve traffic flow, increase safety, provide new pedestrian and bicycle access across Route 101 (which does not presently exist) and provide new and improved sidewalks and bikeways throughout the project area.

The PA & ED phase, completed in December 2016, provided environmental clearance (CEQA and NEPA) of the preferred alternative. The PS&E & Right of Way phase of work began in earnest in August 2017. The PS&E effort will include development of bid documents for construction and coordination of utility relocations. The Right of Way effort will involve appraisals, acquisition, and clearance of properties necessary for project improvements and areas required for temporary easements for construction. Completion and approval of these efforts along with a complete capital funding picture will be followed by project construction.

Finally, the City is coordinating with Caltrans regarding advertisement, award and administration of construction, and necessary agreements between parties concerning construction, operations and maintenance responsibilities.

Previous Studies

Project Manager
Paul Krupka, P.E.